1045552225 has 27 divisors (see below), whose sum is σ = 1348780953. Its totient is φ = 803977440.

The previous prime is 1045552201. The next prime is 1045552229. The reversal of 1045552225 is 5222555401.

It is a happy number.

The square root of 1045552225 is 32335.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 14371681 + 1031180544 = 3791^2 + 32112^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1045552225 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045552229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4688464 + ... + 4688686.

Almost surely, 2^1045552225 is an apocalyptic number.

1045552225 is the 32335-th square number.

1045552225 is the 16168-th centered octagonal number.

It is an amenable number.

1045552225 is a deficient number, since it is larger than the sum of its proper divisors (303228728).

1045552225 is an frugal number, since it uses more digits than its factorization.

1045552225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The cubic root of 1045552225 is about 1014.9591820320.

The spelling of 1045552225 in words is "one billion, forty-five million, five hundred fifty-two thousand, two hundred twenty-five".